Riverbed Inc. is a retailer using the periodic inventory system. All sales returns from customers result in the goods being returned to inventory. (Assume that the inventory is not damaged.) Assume that there are no credit transactions; all amounts are settled in cash. You are provided with the following information for Riverbed Inc. for the month of January.

Date		Description		Quantity		Unit Cost or Selling Price
Dec. 31		Beginning inventory		160		20
Jan. 2		Purchase		100		23
Jan. 6		Sale		180		41
Jan. 9		Sale return		10		41
Jan. 9		Purchase		75		24
Jan. 10		Purchase return		15		24
Jan. 10		Sale		50		45
Jan. 23		Purchase		100		26
Jan. 30		Sale		120		50

(a)

Calculate (i) cost of goods sold and (ii) ending inventory using FIFO. (Assume sales returns had a cost of $20 and purchase returns had a cost of $24.)

(i)		Cost of goods sold		$enter a dollar amount
(ii)		Ending inventory		$enter a dollar amount

b part also